Triggering from EP1200A
Emergency Paging Mic
24V Power supply for VC
overriding
to volume controllers
to volume controllers
Link these ports
ALL CALL paging can be
performed from Emergency
Paging Mic ( EP1200A ), which
when Relay Trigger port is
energised, it shall provide a
voltage free relay contact.
Connect 24V DC power supply
from PSU to trigger external
volume controllers for Overriding
purpose.
When multiple ZS are used, link
the Relay Trig ports together, thus
any triggering from EP1200A shall
perform ALL CALL paging to all
zones at all the zone selectors.
Note :
Pressing ALL CALL at individual
zone selector shall only trigger all
zones at the unit, without trigger-
ing the relay output ; ie. this shall
not override the volume controllers
+
DC 24V
CON
RLY
TRIG
RLY
PR
ZS
PIN 8-COM
PIN 7-24V
PIN 6-Z6
PIN 5-Z5
PIN 4-Z4
PIN 3-Z3
PIN 2-Z2
PIN 1-Z1
+
DC 24V
CON
RLY
TRIG
RLY
PR
ZS
PIN 8-COM
PIN 7-24V
PIN 6-Z6
PIN 5-Z5
PIN 4-Z4
PIN 3-Z3
PIN 2-Z2
PIN 1-Z1
+
DC 24V
CON
RLY
TRIG
RLY
PR
ZS
Connecting Emergency Overriding Port
PAGE 6
ZS5601 / ZS5121 | ZONE SELECTOR
to trigger volume controller
overriding relay, etc.
TO VOLUME CONTROL OVERRIDING
RELAY OR OTHER E/CY. INDICATOR
OR EMERGENCY INTERFACE
LOAD: 24V DC 2 AMPS
EMER. PAGING MICROPHONE
SWITCH OR OTHER EMER.
TRIGGER
- VE
24V DV
(PS9400)
More than often, volume controllers are installed at areas that requires sound level to be attenuated, eg. conference room,
etc.
Overriding is required when an emergency switch is pressed, normally via firemen paging mic with a dry contact. With
the connection shown, whenever the switch is pressed, it would trigger the internal relay which shall then provide a
dry contact. It can be used to trigger overriding relay at volume controller or other external device such as emergency light
indicator . It can also be used to trigger ALL CALL.
Please ensure the loading does not exceed the limits as indicated. Polarity must also be observed when connecting this
port.
NI
ONI
RLY
24V
DC
